CN114856760B - Catalytic particulate matter catcher for purifying NOX and PM cooperatively - Google Patents
Catalytic particulate matter catcher for purifying NOX and PM cooperatively Download PDFInfo
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- CN114856760B CN114856760B CN202210511373.XA CN202210511373A CN114856760B CN 114856760 B CN114856760 B CN 114856760B CN 202210511373 A CN202210511373 A CN 202210511373A CN 114856760 B CN114856760 B CN 114856760B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1406—Exhaust gas pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a catalytic particulate matter trap for purifying NOX and PM cooperatively, which belongs to the technical field of marine engines and comprises the following components: the particle catcher body, all communicate and install the observation box on the exit outer wall of particle catcher body, observation box inner chamber slidable mounting has the fly leaf, install the elastic component between fly leaf outer wall and the observation box inner wall, two sets of install the instruction case through the connecting pipe intercommunication between the observation box, instruct case inner chamber slidable mounting to have the movable block, the connecting region of observation box and connecting pipe is located the top of fly leaf, and through the exit intercommunication of observation box and particle catcher body in the device, when particle catcher body takes place to leak, can make the particle catcher body import and export produce the atmospheric pressure difference between, make the movable block remove and press the second touch switch at instruction box inner chamber, make the pilot lamp work to make the staff conveniently know the condition that the particle catcher body leaks gas appear.
Description
Technical Field
The invention relates to the technical field of marine engines, in particular to a catalytic particulate matter trap for cooperatively purifying NOX and PM.
Background
The emission control of the engine mainly comprises two methods of 'internal purification' and 'external purification', wherein the 'internal purification' improves the in-cylinder combustion process by optimizing an 'oil-gas-chamber' matching strategy, the 'external purification' reduces the harmful emission generation amount from the source, the 'external purification' controls the emission of PM, HC, CO and NOX respectively by using a particle catcher (DPF), an oxidation-type catalytic converter (DOC) and a selective catalytic reduction technology (SCR) of an exhaust aftertreatment system, and the cooperative application of internal and external purification measures is the development trend of the emission control of the current marine diesel engine;
when the catalytic particle catcher is used for treating the emission, the emission gas is led into the particle catcher, and is discharged from the gas outlet of the particle catcher after the treatment is finished;
however, the lack of a mechanism for detecting the air tightness on the particle catcher can not be found in time when air leakage occurs in the using process of the particle catcher, and the leakage of emissions can cause pollution to the surrounding environment.
Disclosure of Invention
The invention aims to provide a catalytic particle trap for cooperatively purifying NOX and PM, which solves the problems that the particle trap provided in the background art lacks a mechanism for detecting air tightness, cannot be found in time when air leakage occurs in the use process of the particle trap, and can pollute the surrounding environment.
In order to achieve the above purpose, the present invention provides the following technical solutions: a catalytic particulate matter trap for synergistic NOX and PM purification comprising: a particulate trap body;
the particle catcher comprises a particle catcher body, wherein the outer walls of an inlet and an outlet of the particle catcher body are respectively provided with an observation box in a communicating way, the inner cavity of the observation box is slidably provided with a movable plate moving along the length direction of the observation box, the inner cavity of the observation box is divided into two cavities which are sealed with each other by the movable plate, and an elastic piece for limiting the movement of the movable plate is arranged in the observation box;
the two groups of observation boxes are communicated with each other through a connecting pipe, the connecting area of the connecting pipe and the observation boxes is located on the moving path of the movable plate, the inner cavity of the observation boxes is slidably provided with moving blocks moving along the length direction of the observation boxes, the inner cavity of the observation boxes is divided into two mutually isolated cavities by the moving blocks, the observation boxes and the observation boxes are transparent boxes, the particle catcher body leaks, air pressure difference is generated between the two groups of observation boxes communicated with the inlet and the outlet of the particle catcher body, and the moving blocks are pushed to move in the observation boxes to prompt.
Preferably, the inner cavity of the indication box is provided with a mounting plate positioned on the moving path of the moving block, one side wall of the mounting plate, which is close to the moving block, is provided with a second touch switch, the outer wall of the indication box is provided with an indication lamp which is electrically connected with the second touch switch,
wherein, set up the opening that is used for making the inside air of entering instruction case can pass the mounting panel on the mounting panel.
Preferably, the mounting plate is slidably mounted in the inner cavity of the indication box, a side wall of the mounting plate, which is far away from the moving block, is provided with a moving support rod which extends to the outer side of the indication box, the outer wall of the indication box is provided with a mounting frame sleeved on the outer wall of the moving support rod, and the outer wall of the mounting frame is in threaded connection with a fixing bolt for fixing the moving support rod.
Preferably, the mounting grooves extending along the length direction of the indication box are formed in the two side walls of the moving block, the guide block is inserted in the inner cavity of the mounting groove in a sliding mode, a spring piece is arranged between the inner side wall of the guide block and the inner wall of the mounting groove, and the moving plate used for dividing the inner cavity of the indication box and enabling the divided inner cavities to be isolated and sealed is arranged on the outer side wall of the guide block.
Preferably, the installation support plate is installed on the outer wall of the observation box at one side of the inlet of the particulate matter catcher body, the electric telescopic rod is installed on the outer wall of the installation support plate, the limiting block is installed on the moving end of the electric telescopic rod, and the outer side end of the limiting block extends into the inner cavity of the observation box and limits the moving plate to move.
Preferably, the outer wall of the observation box on one side of the outlet of the particulate matter catcher body is provided with a mounting hole, a guide rod extending into the inner cavity of the observation box is slidably inserted into the inner cavity of the mounting hole, a first touch switch positioned on the moving path of the movable plate is mounted at the inner side end of the guide rod, the first touch switch is electrically connected with the electric telescopic rod, and an elastic element is mounted between the outer wall of the guide rod and the outer wall of the observation box.
Preferably, the outer wall of the indication box is provided with an opening, a fixing rod for fixing the moving block is inserted in the cavity of the opening in a sliding way,
the outer wall of the indication box is provided with through holes positioned at two sides of the moving block, and the inner cavity of each through hole is inserted with a piston.
Preferably, the inner wall of the indication box is provided with a sliding groove extending along the moving direction of the moving block, the outer wall of the moving block is provided with a sliding block which is inserted in the inner cavity of the sliding groove in a sliding way, the outer wall of the sliding block is provided with a pull rod which is parallel to the length direction of the indication box and extends to the outer side of the indication box,
the storage box is mounted on the outer wall of the indication box, the winding rod is rotatably mounted in the inner cavity of the storage box, the outer wall of the winding rod is wound with a connecting rope, and the tail end of the connecting rope extends to the outer side of the storage box and is connected with the outer side end of the pull rod.
Compared with the prior art, the invention has the beneficial effects that: the device is communicated with the inlet and the outlet of the particle catcher body through the observation box, when the particle catcher body leaks, the air pressure difference is generated between the inlet and the outlet of the particle catcher body, the movable block moves in the inner cavity of the indication box and presses the second touch switch, so that the indication lamp works to prompt the staff, and the staff can conveniently know the air leakage condition of the particle catcher body.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection structure of the electric telescopic rod and the limiting block;
FIG. 3 is a schematic view of a connection structure between a guide rod and a first touch switch according to the present invention;
FIG. 4 is a schematic diagram of the connection structure of the indication box and the moving block according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of the present invention at A;
FIG. 6 is an enlarged schematic view of the structure of the present invention at B.
In the figure: 1. a particulate trap body; 2. an observation box; 3. an elastic member; 4. a movable plate; 5. a connecting pipe; 6. an indication box; 7. mounting a support plate; 8. an electric telescopic rod; 9. a limiting block; 10. a guide rod; 11. an elastic element; 12. a first touch switch; 13. a moving block; 14. a mounting plate; 15. a second touch switch; 16. moving the support rod; 17. an indicator light; 18. a chute; 19. a pull rod; 20. a piston; 21. a mounting groove; 22. a guide block; 23. a moving plate; 24. a fixed rod; 25. a storage box; 26. and (5) connecting ropes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1, a catalytic particulate matter trap for co-purifying NOX and PM includes: the particle catcher body 1 is a wall flow type diesel particle catcher (DPF), the wall surface is porous rare earth oxide-trace noble metal component, and the exhaust temperature of a ship engine is far lower than the normal soot oxidation combustion temperature (more than 600 ℃), so that the NO2 generated by a DOC system is used as a PM oxidant to promote the NO2+PM oxidation reaction by optimizing and improving the trace catalyst component in the DPF, the temperature requirement of the DPF on PM regeneration is greatly reduced, the deposition amount of particles in the DPF is reduced, and the adverse effects of mass deposition of particles in the DPF and high-temperature regeneration on the engine and the DPF system are reduced;
referring to fig. 1, 2, 3 and 4, in order to detect the air tightness of the working particle catcher device, an observation box 2 (in the direction shown in fig. 1) is installed at the top of the outer wall of the inlet and outlet of the particle catcher body 1, the observation box 2 is communicated with the inlet and outlet of the particle catcher body 1, a movable plate 4 is slidably installed in the inner cavity of the observation box 2, the movable plate 4 can move up and down, an elastic piece 3 (a spring) is installed between the outer wall of the movable plate 4 and the inner wall of the observation box 2, an indication box 6 is connected between two groups of observation boxes 2 through a connecting pipe 5, a moving block 13 is slidably installed in the inner cavity of the indication box 6, the moving block 13 can move left and right (in the direction shown in fig. 4), the connection area between the observation box 2 and the connecting pipe 5 is located above the movable plate 4, the indication box 6 and the observation box 2 are made of transparent plastic materials for convenient observation, specifically, the PVC transparent material is adopted, the mounting plate 14 is arranged in the inner cavity of the indication box 6, the mounting plate 14 is positioned on the right side (direction shown in fig. 4) of the moving block 13, the second touch switch 15 is arranged on the left side wall of the mounting plate 14, the indication lamp 17 (LED lamp) electrically connected with the second touch switch 15 is arranged on the outer wall of the indication box 6, the opening is arranged on the outer wall of the mounting plate 14 in a penetrating way, so that air can pass through the mounting plate 14, air is filled between the upper part of the inner cavity of the observation box 2 and the indication box 6, when leakage occurs at the particulate matter trap body 1, the air pressure in the right observation box 2 is lower than that of the left observation box 2, the moving block 13 is moved rightwards, the second touch switch 15 is pressed, the indication lamp 17 emits light to prompt people, so that people can know the leakage condition of the particulate matter trap body 1 in time, when the particle catcher body 1 does not leak, the moving block 13 does not move, the indicator lamp 17 does not emit light, and the movable plate 4 moves upwards in the inner cavity of the observation box 2, so that the air pressure in the particle catcher body 1 can be reduced, and a protection effect can be achieved;
referring to fig. 4, in order to adjust the distance between the second touch switch 15 and the moving block 13, the mounting plate 14 is slidably mounted in the inner cavity of the indication box 6, the mounting plate 14 can move left and right in the inner cavity of the indication box 6, the moving support rod 16 is mounted on the right side wall of the mounting plate 14, the right end of the moving support rod 16 extends to the outside of the right side of the indication box 6 (in the direction shown in fig. 4), the mounting frame is mounted on the outer wall of the right side of the indication box 6, the mounting frame is sleeved on the outer wall of the moving support rod 16, the fixing bolt is screwed on the outer wall of the mounting frame, the fixing bolt extends into the inner cavity of the mounting frame to be attached to the outer wall of the moving support rod 16, the fixing bolt is unscrewed, and the position of the moving support rod 16 is changed, so that the distance between the second touch switch 15 and the moving block 13 can be adjusted;
referring to fig. 4 and 5, mounting grooves 21 (in the direction shown in fig. 5) are formed on both left and right side walls of the moving block 13, a guide block 22 is slidably mounted in an inner cavity of the mounting groove 21, the guide block 22 can move left and right, a spring member (spring) is mounted between an inner side wall of the guide block 22 and an inner wall of the mounting groove 21, a moving plate 23 is mounted on an outer side wall of the guide block 22, when an air pressure difference occurring in the two observation boxes 2 is small, the moving plate 23 and the guide block 22 on one side with large air pressure move to the moving block 13, so that the moving block 13 cannot move first (friction resistance exists between an outer wall of the moving block 13 and an inner wall of the indication box 6, so that the moving block 13 cannot move easily), and the moving block 13 cannot move within a certain pressure difference, so that a detection error is avoided;
referring to fig. 4 and 5, an opening (in the direction shown in fig. 5) is formed in the outer wall of the top of the indication box 6, a fixing rod 24 is slidably inserted into the opening cavity, the fixing rod 24 can move up and down, a fixing hole is formed in the upper surface of the moving block 13, the bottom end of the fixing rod 24 is inserted into the cavity of the fixing hole, the moving block 13 is fixed, through holes (in the direction shown in fig. 4) are formed in the left side and the right side of the outer wall of the top of the indication box 6, two through holes are formed in the left side and the right side of the moving block 13, a piston 20 is inserted into the cavity of the through holes, the piston 20 is moved out of the through holes, the inside of the indication box 6 can be opened, a transverse sliding groove 18 (in the direction shown in fig. 4) is formed in the inner wall of the indication box 6, a sliding block is mounted on the outer wall of the moving block 13, the sliding block is slidably inserted into the cavity of the sliding groove 18, the sliding block can move left and right in the cavity of the sliding groove 18, a pull rod 19 is mounted on the left side outer wall of the sliding block, the left end of the pull rod 19 extends to the left side of the indication box 6, and the moving block 13 is reset by moving the pull rod 19;
referring to fig. 6, a storage box 25 (in the direction shown in fig. 6) is mounted on the left side outer wall of the indication box 6, a winding rod is rotatably mounted in the inner cavity of the storage box 25, a connecting rope 26 is wound on the outer wall of the winding rod, the tail end of the connecting rope 26 extends to the outer side of the storage box 25 and is connected with the left end of the pull rod 19, and the connecting rope 26 is connected with the pull rod 19, so that the pull rod 19 can be moved together when the connecting rope 26 is pulled.
Example 2:
referring to fig. 1, 2 and 3, based on embodiment 1, the outer wall of the left observation box 2 is provided with a mounting support plate 7, the outer wall of the mounting support plate 7 is provided with an electric telescopic rod 8, and a limiting block 9 is arranged on the moving end of the electric telescopic rod 8, so that one end of the limiting block 9, which is close to the left observation box 2, extends into the inner cavity of the observation box 2 and is attached to the top of the movable plate 4, and the movable plate 4 is prevented from moving upwards, wherein the movable plate 4 is arranged in the inner cavity of the left observation box 2;
the top wall of the observation box 2 on the right side is provided with a mounting hole, a guide rod 10 is inserted in the inner cavity of the mounting hole in a sliding way, the guide rod 10 can move up and down, a first touch switch 12 is arranged at the bottom end of the guide rod 10, the first touch switch 12 is positioned above the movable plate 4, the distance between the first touch switch 12 and the movable plate is smaller, the first touch switch 12 is electrically connected with the electric telescopic rod 8, and an elastic element 11 (spring) is arranged between the outer wall of the guide rod 10 and the outer wall of the observation box 2;
when the waste gas starts to enter the interior of the particle catcher body 1, the left observation box 2 is filled with the waste gas, an upward force is applied to the left movable plate 4, the left movable plate 4 is limited by the limiting block 9, the moving block 13 in the indication box 6 is prevented from moving when the waste gas does not completely pass through the particle catcher body 1, detection errors are avoided, when the waste gas completely passes through the particle catcher body 1, the right observation box 2 is filled with the waste gas, the right movable plate 4 moves upwards, the first touch switch 12 is pressed, the electric telescopic rod 8 works, the limiting block 9 is moved away from the upper side of the left movable plate 4, normal work of the left movable plate 4 is ensured, a mounting opening is formed in the connecting part of the left observation box 2 and the limiting block 9, and when the limiting block 9 is moved away from the upper side of the left movable plate 4, the mounting opening is prevented from being blocked by the limiting block 9;
the limiting block 9, the guide rod 10, the first touch switch 12 and other components are added relative to the embodiment 1, and when the exhaust gas is not filled in the particulate matter trap body 1, the observation box 2 and the indication box 6 cannot work.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A catalytic particulate trap for synergistic NOX and PM purification, characterized by: comprising the following steps: a particulate matter trap body (1);
the particle catcher is characterized in that the outer walls of the inlet and the outlet of the particle catcher body (1) are respectively and communicatively provided with an observation box (2), the inner cavity of the observation box (2) is slidably provided with a movable plate (4) which moves along the length direction of the observation box (2), the inner cavity of the observation box (2) is divided into two cavities which are sealed with each other by the movable plate (4), and the observation box (2) is internally provided with an elastic piece (3) which is used for limiting the movement of the movable plate (4);
an indication box (6) is arranged between the two groups of observation boxes (2) in a communicating manner through a connecting pipe (5), a connecting area of the connecting pipe (5) and the observation boxes (2) is located on a moving path of the movable plate (4), a moving block (13) which moves along the length direction of the indication boxes (6) is slidably arranged in the inner cavity of the indication boxes (6), the inner cavity of the indication boxes (6) is divided into two mutually isolated cavities by the moving block (13), the observation boxes (2) and the indication boxes (6) are transparent boxes, and the particle catcher body (1) leaks, so that air pressure difference is generated between the two groups of observation boxes (2) communicated with an inlet and an outlet of the particle catcher body (1), and the moving block (13) is pushed to move in the indication boxes (6) to prompt;
the inner cavity of the indication box (6) is provided with a mounting plate (14) positioned on the moving path of the moving block (13), one side wall of the mounting plate (14) close to the moving block (13) is provided with a second touch switch (15), the outer wall of the indication box (6) is provided with an indication lamp (17) electrically connected with the second touch switch (15),
wherein, the mounting plate (14) is provided with an opening for enabling air entering the inside of the indication box (6) to pass through the mounting plate (14);
the device is characterized in that an installation support plate (7) is installed on the outer wall of an observation box (2) at one side of an inlet of the particulate matter catcher body (1), an electric telescopic rod (8) is installed on the outer wall of the installation support plate (7), a limiting block (9) is installed on the moving end of the electric telescopic rod (8), and the outer side end of the limiting block (9) extends into an inner cavity of the observation box (2) and limits the movement of a movable plate (4);
the device is characterized in that a mounting hole is formed in the outer wall of an observation box (2) on one side of an outlet of the particulate matter catcher body (1), a guide rod (10) extending into the inner cavity of the observation box (2) is inserted in the inner cavity of the mounting hole in a sliding mode, a first touch switch (12) located on a moving path of a movable plate (4) is mounted at the inner side end of the guide rod (10), the first touch switch (12) is electrically connected with an electric telescopic rod (8), and an elastic element (11) is mounted between the outer wall of the guide rod (10) and the outer wall of the observation box (2).
2. A catalytic particulate trap for the synergistic purification of NOX and PM according to claim 1, wherein: the mounting plate (14) is slidably mounted in the inner cavity of the indication box (6), a side wall of the mounting plate (14) away from the moving block (13) is provided with a moving support rod (16) extending to the outer side of the indication box (6), the outer wall of the indication box (6) is provided with a mounting frame sleeved on the outer wall of the moving support rod (16), and the outer wall of the mounting frame is in threaded connection with a fixing bolt for fixing the moving support rod (16).
3. A catalytic particulate trap for the synergistic purification of NOX and PM according to claim 1, wherein: the two side walls of the moving block (13) are provided with mounting grooves (21) extending along the length direction of the indication box (6), the inner cavities of the mounting grooves (21) are slidably inserted with guide blocks (22), spring pieces are arranged between the inner side walls of the guide blocks (22) and the inner walls of the mounting grooves (21), and the outer side walls of the guide blocks (22) are provided with moving plates (23) used for dividing the inner cavities of the indication box (6) and mutually isolating and sealing the divided inner cavities.
4. A catalytic particulate trap for the synergistic purification of NOX and PM according to claim 1, wherein: an opening is arranged on the outer wall of the indication box (6), a fixed rod (24) for fixing the moving block (13) is inserted in the cavity of the opening in a sliding way,
the outer wall of the indication box (6) is provided with through holes positioned at two sides of the moving block (13), and a piston (20) is inserted into the inner cavity of each through hole.
5. A catalytic particulate trap for the synergistic purification of NOX and PM according to claim 4, wherein: the inner wall of the indication box (6) is provided with a sliding groove (18) extending along the moving direction of the moving block (13), the outer wall of the moving block (13) is provided with a sliding block which is inserted into the inner cavity of the sliding groove (18) in a sliding way, the outer wall of the sliding block is provided with a pull rod (19) which is parallel to the length direction of the indication box (6) and extends to the outer side of the indication box (6),
the storage box (25) is mounted on the outer wall of the indication box (6), the winding rod is rotatably mounted in the inner cavity of the storage box (25), the connecting rope (26) is wound on the outer wall of the winding rod, and the tail end of the connecting rope (26) extends to the outer side of the storage box (25) and is connected with the outer side end of the pull rod (19).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210511373.XA CN114856760B (en) | 2022-05-12 | 2022-05-12 | Catalytic particulate matter catcher for purifying NOX and PM cooperatively |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210511373.XA CN114856760B (en) | 2022-05-12 | 2022-05-12 | Catalytic particulate matter catcher for purifying NOX and PM cooperatively |
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| CN114856760A CN114856760A (en) | 2022-08-05 |
| CN114856760B true CN114856760B (en) | 2023-04-25 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4863111B2 (en) * | 2006-08-31 | 2012-01-25 | 株式会社デンソー | Exhaust purification device |
| DE102008012630A1 (en) * | 2008-01-29 | 2009-07-30 | Robert Bosch Gmbh | Method and device for calculating the switching pressure in a metering valve |
| CN102323004A (en) * | 2011-06-01 | 2012-01-18 | 合肥望远电子科技有限公司 | A kind of switching value differential pressure pick-up |
| CN202177483U (en) * | 2011-06-29 | 2012-03-28 | 合肥威尔燃油系统有限责任公司 | Differential pressure sensor |
| CN104100341A (en) * | 2014-06-30 | 2014-10-15 | 潍柴动力股份有限公司 | DPF (Diesel Particulate Filter) self-diagnosis device, self-diagnosis method and engine tail gas treatment system |
| DE102015212372B4 (en) * | 2015-07-02 | 2021-09-30 | Ford Global Technologies, Llc | Method and system for monitoring operation of a catalytic converter |
| US11041423B2 (en) * | 2019-03-19 | 2021-06-22 | Ford Global Technologies, Llc | Method and system for leak detection at a particulate filter |
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